SharePoint behind a Proxy

I was recently involved in the build of a large SharePoint 2013 farm that is behind a Proxy server. Initially, there was no access through to the internet so the install was done using an offline install. This allowed everything to be completed with the exception of the SharePoint App Store and access to external content such as RSS feeds.

Proxy Access

Once Proxy access was granted, the web.config files on each of the servers need to be changed to inform SharePoint to use the Proxy.

Within the web.config file in the system.net node, replace the defaultProxy node with the following node: